# Services from preview-chat-985505b1-9dc0-470f-9fc3-3704d8b625e3.space-z.ai on Zero

> preview-chat-985505b1-9dc0-470f-9fc3-3704d8b625e3.space-z.ai serves 3 paid API services for AI agents, indexed by Zero. Each is callable per call with payment handled by Zero.

Canonical page: https://www.zero.xyz/host/preview-chat-985505b1-9dc0-470f-9fc3-3704d8b625e3.space-z.ai
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/preview-chat-985505b1-9dc0-470f-9fc3-3704d8b625e3.space-z.ai/health.json

## Services

- [Quick Brief API](https://www.zero.xyz/c/quick-brief-api-edbba991/llms.txt): $0.01/call via x402. Performs a single live web search and returns a snippet-level digest of 3-6 cited key points on any topic in seconds, paid per-call via x402.
- [Research Brief API](https://www.zero.xyz/c/research-brief-api-219de4f8/llms.txt): $0.05/call via x402. Searches the live web, reads 3–6 sources, and returns a structured JSON research brief with summary, key findings linked to source URLs, confidence level, and caveats.
- [Wallet Balance Lookup](https://www.zero.xyz/c/wallet-balance-lookup-dc816a0b/llms.txt): $0.001/call via x402. Returns the current native-asset balance for a given wallet address on one of six supported blockchains (Bitcoin, Ethereum, Base, Solana, TRON, Ronin)

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

- [Zero catalog index](https://www.zero.xyz/llms.txt)